The RAID technology combines multiple physical disk drives into one or more logical units to provide data redundancy, performance improvement, or both, making several disks work together to enhance overall system performance, especially for server users.
Expanding RAID 0, RAID 1, or RAID 5 volumes may be necessary when current storage space is almost full. This can be achieved by adding existing unallocated space to the RAID volume, or by adding a new drive directly to the RAID array. If there is no unallocated space available on the current RAID array disks, a new disk can be added to the RAID array as an alternative solution.
To add a drive to a RAID array without losing data, you can use Qiling Disk Master Server, which is compatible with Windows Server and PC. It has a Dynamic Disk Manager that allows you to easily manage dynamic disks and volumes, including adding a new drive to a RAID array to increase capacity while preserving existing data.
Note: To add a disk to the RAID array, you should convert the new disk to a dynamic disk, ensuring the unallocated space on the disk is equal to or larger than the RAID volume on a single disk.